Contribution of the Bursa of Fabricius to the Maturation of the B Cell System in Chickens

  • P. Nieuwenhuis


In a previous paper (1) it was shown that in 6 week old chickens surgical bursectomy and X-irradiation (BX/600 rads) did not prevent de novo formation of germinal centres, in contrast to the well known effects of bursectomy and irradiation immediately post hatching. On the other hand a marked though transitory deficiency in the lymphocyte population surrounding Schweigger Seidel sheaths (sheath lymphoid system, SLS) was noticed. This seemed to indicate that beyond a certain age the B cell system in chickens had matured to a stage where bursal influence (humoral?, cellular?) is less essential and the system had become self-perpetuating, suggesting a non-bursal site taking over (see also: 2, 3).


Germinal Centre White Pulp Human Fibrinogen Germinal Centre Formation Post Hatching 
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Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • P. Nieuwenhuis
    • 1
  1. 1.Department of HistologyUniversity of GroningenGroningenThe Netherlands

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